Grain-drill



(No Model.) I

' J. I, KELLER.

GRAIN DRILL.

No. 257,951. Patented May16, 1 882= it Prints Fllntoiilhogqphpr, walhintun. D. c

UNITED STATES PATENT QFFICE.

JOHN F. KELLER, oEMAE'rinsBuRe, WEST VIRGINIA.

GRAIN-DRILL.

SPECIFICATION forming part of Letters Patent No. 257,951, dated May 16,1882.

Application filed December 8, I881. (No model.)

To all whom it may concern:

Be it known that I, JOHN F. KELLER, a citizen of the United States,residing at Martinsburg, in the county of Berkeley and State of WestVirginia, have invented certain new and useful Improvements inGrain-Drills and other Seed-Planters, of which the following is aspecification, reference being bad therein to the accompanying drawings.

My invention consists of a novel construc tion of feed-roller forgrain-drills, the same having a non-elastic and non-corrosive rollersurface detachable from the heads of the roller, and in otherimprovements, all of which will be understood from the followingdescription.

In the accompanying drawings, Figure l is a rear view of the feed-boxand feed-roller. Fig. 2 is a bottom view, showing both rollers. Fig. 3is a orosssection on the line w m, Fig. 1. Fig. 4 is alongitudinalsection of the complex roller on lines y y, Fig. 2.

In myimpi'oved grain-drill I propose to use one elastic roller'and onenon-elastic and noncorrosive roller, preferably of glass.

The novelty ofmy invention is chiefl y shown in the roller representedin Fig. 4. In my machine are employed the usual standaids, AA,supporting two axles or shafts, B B, one of which carries a commonrubber feedroller, 0, working under the box D in the usual manner.

My improved roller is hollow, and consists of a flat ring of glass, E,and two cast-iron heads or disks, F, held-in place by bolts G andfastened to the shaft B by thumb-screws H. These heads F have flanges toreceive and hold the roller-surface or riu g E, and lugs or projectionsI (preferably cast on the heads) prevent the parts from turning on eachother when the bolts G are screwed up tight.

The non-elasticsurface of the roller may be made of other non corrosivesubstances, 'yet I prefer glass.

The advantages of'niy roller are, first, the feed is uniform, whereastwo rubber rollers or iron rollers often become rough, and are thenliable to feed two layers of grain instead of one. Also, my hollowroller is easily repaired, the surface being removed when worn and a newsurface put in its place.

Having described my inven tion, what I claim In a seederorfertilizer-distributer, the glasssurfaced feed roller or ring E and theadjustable disksF, having a groove to receive the edge

